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Preparation method of needle punched non-woven fabric

Active Publication Date: 2016-03-16
江西大晟节能新材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production process of the existing needle-punched non-woven fabric is complicated, the required equipment is complicated, and the strength, bulkiness, water permeability and air permeability of the produced needle-punched non-woven fabric are poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of needle punched non-woven fabric

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The preparation method of described acupuncture nonwoven specifically comprises the following steps:

[0050] A. Preparation of modified polyester staple fiber

[0051] Blend polyester chips, flame retardants, dispersing lubricants and auxiliary materials at a ratio of 89%, 4%, 3%, and 4%, extrude and filter through a twin-screw extruder, and pass through a spinning box, a metering pump, and a spinneret Spinning, then cooling and clustering, one or more times of heating and drawing, and finally shaping, winding, cutting and packaging;

[0052] B. Preparation of needle-punched nonwovens

[0053] 1) Preparation before forming a net

[0054] ①Choose fiber

[0055] According to the requirements of product performance, select 2D*51mm, 2.5D*51mm and the modified polyester staple fiber POY made in A, and weigh, open and mix according to the ratio of 40%, 50%, and 10%;

[0056] ②The bale opener opens the cotton

[0057] a. Rough opening process

[0058] Use three weighing...

Embodiment 2

[0086] The preparation method of described acupuncture nonwoven specifically comprises the following steps:

[0087] A. Preparation of modified polyester staple fiber

[0088] Blend polyester chips, flame retardants, dispersing lubricants and auxiliary materials in a twin-screw extruder at a ratio of 85%, 8%, 3%, and 4%, and extrude and filter, wherein the amount of flame retardant added is the blend 8% of the total mass is sprayed through the spinning box, metering pump and spinneret, then cooled and clustered, heated and drawn once or more, and finally shaped, wound, cut and packaged;

[0089] B. Preparation of needle-punched nonwovens

[0090] 1) Preparation before forming a net

[0091] ①Choose fiber

[0092] According to the requirements of product performance, select 2D*51mm, 2.5D*51mm and the modified polyester staple fiber POY made in A, and weigh, open and mix according to the ratio of 40%, 50%, and 10%;

[0093] ②The bale opener opens the cotton

[0094] a. Roug...

Embodiment 3

[0123] The preparation method of described acupuncture nonwoven specifically comprises the following steps:

[0124] A. Preparation of modified polyester staple fiber

[0125] Blend polyester chips, flame retardants, dispersing lubricants and auxiliary materials in proportions of 81%, 12%, 3%, and 4%, extrude and filter through a twin-screw extruder, and pass through a spinning box, a metering pump, and a spinneret Spinning, then cooling and clustering, one or more times of heating and drawing, and finally shaping, winding, cutting and packaging;

[0126] B. Preparation of needle-punched nonwovens

[0127] 1) Preparation before forming a net

[0128] ①Choose fiber

[0129] According to the requirements of product performance, select 2D*51mm, 2.5D*51mm and the modified polyester staple fiber POY made in A, and weigh, open and mix according to the ratio of 50%, 40%, and 10%;

[0130] ②The bale opener opens the cotton

[0131] a. Rough opening process

[0132] Use three wei...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a preparation method of a needle punched non-woven fabric, belonging to the field of non-woven fabric processing. The preparation method of the needle punched non-woven fabric comprises the two following steps: A, preparation of modified polyester staple fiber; B, preparation of the needle punched non-woven fabric. The preparation method is short in technological process, strong in raw material adaptability, and simple in equipment structure, a product has the characteristics of uniform gram weight, high breaking strength, great tear strength, good heat stability and the like, the prepared needle punched non-woven fabric has breaking strength of 250-350N / 5cm, elongation at break of 50-98 percent, a fabric limit oxygen index of 30-34, good properties such as fluffiness, water permeability and air permeability, and a cotton feeling, compared with cotton goods, a non-woven fabric bag is easy to form and low in price, and thus is widely used in various fields, and main application of the needle punched non-woven fabric relates to geotechnical cloth, waterproof materials, filtering materials, synthetic leather base cloth, shoe materials and textiles for automobiles.

Description

technical field [0001] The invention relates to a method for preparing needle-punched nonwoven fabrics, belonging to the field of nonwoven fabric processing. Background technique [0002] Needle-punched non-woven fabric is a kind of dry-laid non-woven fabric. The principle of the needle-punched non-woven process is to use the thorns with barbs on the edges of triangular cross-sections (or other cross-sections) to puncture the fiber web in reverse, and the barbs penetrate When passing through the fiber web, the surface of the fiber web and some inner layer fibers are strongly inserted into the interior of the fiber web. Due to the friction between fibers, the original fluffy web is compressed. When the needle exits the fiber web, the pierced fiber bundles break away from the barbs and remain in the fiber web. In this way, many fiber bundles entangle the fiber web, making it impossible to restore the original fluffy state. After many times of needle punching, a considerable...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04H1/435D04H1/46
CPCD04H1/435D04H1/46
Inventor 白凤明刘丽丽
Owner 江西大晟节能新材有限公司
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